Remove lib/rss.rb

This is a follow-up of 83240f315a10b42b53c3b62c1fbc428f97912665 .

lib/rss.rb

@@ -1,94 +0,0 @@
-# frozen_string_literal: false
-##
-# = RSS reading and writing
-#
-# Really Simple Syndication (RSS) is a family of formats that describe 'feeds,'
-# specially constructed XML documents that allow an interested person to
-# subscribe and receive updates from a particular web service. This portion of
-# the standard library provides tooling to read and create these feeds.
-#
-# The standard library supports RSS 0.91, 1.0, 2.0, and Atom, a related format.
-# Here are some links to the standards documents for these formats:
-#
-# * RSS
-#   * 0.9.1[http://www.rssboard.org/rss-0-9-1-netscape]
-#   * 1.0[http://web.resource.org/rss/1.0/]
-#   * 2.0[http://www.rssboard.org/rss-specification]
-# * Atom[http://tools.ietf.org/html/rfc4287]
-#
-# == Consuming RSS
-#
-# If you'd like to read someone's RSS feed with your Ruby code, you've come to
-# the right place. It's really easy to do this, but we'll need the help of
-# open-uri:
-#
-#   require 'rss'
-#   require 'open-uri'
-#
-#   url = 'http://www.ruby-lang.org/en/feeds/news.rss'
-#   open(url) do |rss|
-#     feed = RSS::Parser.parse(rss)
-#     puts "Title: #{feed.channel.title}"
-#     feed.items.each do |item|
-#       puts "Item: #{item.title}"
-#     end
-#   end
-#
-# As you can see, the workhorse is RSS::Parser#parse, which takes the source of
-# the feed and a parameter that performs validation on the feed. We get back an
-# object that has all of the data from our feed, accessible through methods.
-# This example shows getting the title out of the channel element, and looping
-# through the list of items.
-#
-# == Producing RSS
-#
-# Producing our own RSS feeds is easy as well. Let's make a very basic feed:
-#
-#   require "rss"
-#
-#   rss = RSS::Maker.make("atom") do |maker|
-#     maker.channel.author = "matz"
-#     maker.channel.updated = Time.now.to_s
-#     maker.channel.about = "http://www.ruby-lang.org/en/feeds/news.rss"
-#     maker.channel.title = "Example Feed"
-#
-#     maker.items.new_item do |item|
-#       item.link = "http://www.ruby-lang.org/en/news/2010/12/25/ruby-1-9-2-p136-is-released/"
-#       item.title = "Ruby 1.9.2-p136 is released"
-#       item.updated = Time.now.to_s
-#     end
-#   end
-#
-#   puts rss
-#
-# As you can see, this is a very Builder-like DSL. This code will spit out an
-# Atom feed with one item. If we needed a second item, we'd make another block
-# with maker.items.new_item and build a second one.
-#
-# == Copyright
-#
-# Copyright (c) 2003-2007 Kouhei Sutou <kou@cozmixng.org>
-#
-# You can redistribute it and/or modify it under the same terms as Ruby.
-#
-# There is an additional tutorial by the author of RSS at:
-# http://www.cozmixng.org/~rwiki/?cmd=view;name=RSS+Parser%3A%3ATutorial.en
-
-module RSS
-end
-
-require "rss/version"
-
-require 'rss/1.0'
-require 'rss/2.0'
-require 'rss/atom'
-require 'rss/content'
-require 'rss/dublincore'
-require 'rss/image'
-require 'rss/itunes'
-require 'rss/slash'
-require 'rss/syndication'
-require 'rss/taxonomy'
-require 'rss/trackback'
-
-require "rss/maker"